2. Learning outcomes
• To know where to look for good quality
information on the web
• To learn how to use key medical
databases effectively
3. Search engines
• Search engine = supermarket
• Photo by vauvau (http://flic.kr/p/75yAAb)
• Searches across many DIFFERENT
things
4. Healthcare specific
search engines
• Search specifically across healthcare
related resources
• Search across good quality internet
resources
• Much more manageable number of
results
• Ability to filter your results
5. Medline Plus
• US National Institutes of Health's web
site for patients and their families and
friends
• Designed to provide up-to-date
healthcare information in
understandable language
• Also provides links to the latest
medical research
www.nlm.nih.gov/medlineplus
6.
7.
8. Evidence Search
• Easy to use
• Searches across high-quality
healthcare specific resources
• Provided and managed by NICE
• Wide range of filters allow you to
narrow down your search e.g. by type
of information or date of publication
www.evidence.nhs.uk
9.
10.
11. TRIP
• One simple search box
• Results are colour coded giving an at
a glance indication of quality of
information
• Results vary widely - including
primary research, reviews, textbooks
and news
www.tripdatabase.com
12.
13.
14. Databases
• Databases – florist
• Photo by stevewhis (http://flic.kr/p/a4h4RJ)
• Collection of SAME thing
15. Databases
• Vast collections of references of
published research
• Filters can be applied to narrow results
down
• Searches can be combined and saved
for future use
• References can be imported to
EndNote Web
16. MEDLINE (PubMed)
• PubMed is a search interface for the
MEDLINE database
• Database of references and abstracts
of journal articles
• Covers the broad field of biomedicine
• Special QM PubMed address for
easier full-text access
www.ncbi.nlm.nih.gov/entrez/query.fcgi?otool=igbqmullib
17.
18.
19.
20. Web of Science
• Part of ISI Web of Knowledge
• Contains:
– Science Citation Index
– Social Sciences Citation Index
– Arts and Humanities Citation Index
• Need to log in off campus
www.webofknowledge.com
21.
22.
23. Scopus
• World’s largest abstract and citation
database
• Search across a range of subject
areas
• Includes Medline coverage
• Need to log in off campus
www.scopus.com
24.
25.
26. The Cochrane Library
• High quality systematic reviews
• Already been critically appraised
• Full text available
• Also contains abstracts of other
systematic reviews and clinical trials
www.thecochranelibrary.com
27.
28.
29.
30. Broadening your search
• An OR search – combine two
synonyms to give a larger number of
results
• Child health OR paediatrics will
search for any articles containing
one or both of the terms
31. Broadening your search
• Truncation – add an asterisk to the
stem of a word
• Injur* will search for
injury, injuries, injured, injuring . . .
32. Narrowing your search
• An AND search – combine two
elements of your search question to
give a smaller number of results
• Asthma AND children will search for
any articles containing both of the
terms
Watch this cartoon explaining more
about Boolean operators
http://www.powtoon.com/p/e3vNiOdKt0L/
33. Narrowing your search
• Phrase searching – enclose phrase
within quotation marks
• “diabetes mellitus” will return results
where diabetes and mellitus appear
side by side in the title or abstract
34. Subject headings &
thesaurus terms
• E.g. MeSH terms in PubMed
• Alternative to keyword searching
• Fixed set of terms assigned to define
the main focus of an article
• Each article “tagged” with several
headings
• Heading not necessarily a word that
appears in title or abstract
• PubMed automatically searches MeSH
terms. Check the search details box.
35. Summary
• Use specialist search engines to
search across a wide range of good
quality web resources
• Use databases to find academic
research articles, both primary
research as well as review articles
